<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>三角符号 Triangle</title>
    <link rel="stylesheet" href="../css/yelfui.min.css">
</head>
<body>
    <div class="container">
        <div class="wrap">
            <span class="y-triangle-down">三角符号</span>
            <span class="y-triangle-right">三角符号</span>
            <span class="y-triangle-left">三角符号</span>

            <button class="y-btn-default y-triangle-down">按钮</button>
        </div>
    </div>
</body>
</html>